Dental instrument.



M. BAILEY.

DENTAL INSTRUMENT.

APPLICATION FILED JUNE 24, 1912;

1 ,O54,488. Patented Feb. 25, 1913.

WITNESSES g /7d/00//// fiazZ v UNITED STATES 1 Fri-TENT on MALCOLMBAILEY, OF BIRMINGHAM, ALABAMA, ASSIGNOB OF ONE-HALF T0 WILLIAM BAILEY,JR, 015' MEMPHIS, TENNESSEE.

DENTAL INSTRUMENT.

Specification of Letters Patent.

Patented Feb.'25, 1913.

To all whom it may concern:

. Be it known that I, MALCOLM BAILEY, a citizen of the United States,residing at Birmingham, in the county of Jefferson and State of Alabama,have invented certain new and useful Improvements in Dental Instruments,of which the following is a specification. V

.The present invention relates'to im rovements 1n dental instruments,and em odies a combined mouth gag and mirror, for use in dental orsurgical operations.

The object of the invention is the provision of a device of thischaracter by means of which the mouth may be held in open position topermit access to the teeth in dental operations, or to the throat insurgical operations, and as an aid to these operations the mirror may beadjusted to the most advantageous position.

The instrument is designed to be held bodily in the month between theupper and lower jaws, so that, after being properly adjusted in themouth to reflect the object to be operated upon, there is no liabilityof the mirror being moved from its proper position, even though thepatient should move his head.

The utilization of my device eliminates many objections and diificultiesencountered in the performance of surgical and dental operations thatare due to the nature of the instruments now in use.

The invention consists essentially in the novel combination andarrangement of parts as hereinafter specified and more clearly pointedout in the claim.

- In the accompanying drawings I have illustrated one example of thephysical embodiment of my invention constructed according to the bestmode I have so far de vised or the practical application of theprinciples of the invention.

Figure 1 is a plan view of an instrument embodying my invention. Fig. 2is an edge view of Fig. 1, and Fig. 3 is a view similar to Fig. 1showing the flexibility of the mir ror bracket or support.

In the preferred embodiment of my invention the mouth mirror 1 issupported at the end of the flexible bracket arm 2, the

latter comprising links 3 and headed couplings 4, to ether with the setscrews5 by means of which the links and con lings or coupling bars maybe adjusted an held in desired position. This construction provides abracket arm with universal joints and the construction of the jointspermits innumerable arrangements of the links and couplings, so that thearm may be bent to any desired form in order that the mirror may belocated in desired position.

Themouth gag comprises the bent bar 6, the two cupped heads 7, and thecork tips 8, and the gag is connected to the bracket arm by means of aclamp member 9. The jaws 10 of the clamp member are at one end providedwith concave seats to fit over the head 11 of one of the coupling bars,and a small screw 12 is employed to draw the bars into frictionalcontact with the head. A larger screw 13 provides means by which theclamping jaws. may be drawn into frictional contact with the bar 6 ofthe gag, and the members are formed with rounded seats 14 to fit aboutthe bar. By means of this construction the clamp'member may be slippedalong the bent bar to desired position and there clamped on the bar bymeans of the screw 13.

As before stated, many different arrangements of the bracket arm may beaccomplished, and the clamp may be fixed at any point'on the bar 6, toadjust the mouth mirror to position to ex ose to the operator, byreflection, such mem rs as are to be operated upon.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is:

The combination with the bar of a mouth gag, a flexible sup ortingbracket and a mirror, of a pair of c ampingjaws eachformed with arecessed clamping seat, a screw passing through the jaws and adapted toclamp the jaw seats on the bar, and ascrew to clamp the jaws to thebracket.

In testimon whereof I aflix my signature Witnesses:

M. L. Nnwcomn, H. A. Pnmurs.

